Quote:
Originally Posted by bteck
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There's a few threads on boat-tail construction, and for what I can tell, they all support the idea of an upswept boattail between 4-7 degrees as a preference, while until about 15 degrees in upsweep there is serious Cd increase. If you were conscious about the length of the boat tail, I'd say push 7 degrees in upsweep.
Also, with a small car like yours it might be wisest to focus on weight. Reductions in weight on your car will go farther than deletions on a truck. I had initially suggested conduit for the build because not only is it forgiving, but lightweight. You'd might be interested in switching from steel rims on your car, and increasing air pressure in your tires, also.
I appreciate your ambition, nonetheless. Good luck and happy modding!